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Formula Memory (fx-85W)
•Formula memory lets you input a single formula in
memory, and then input values for the formula's variables
to calculate results.
•Memory can hold a single formula, up to 79 steps long.
This function can be used in the COMP mode only.
•Note that the formula is actually stored in memory when
you press the
C
key in the sequence below.
Example: To s av e the following formula, recall it, and
then use it to calculate a result: Y = X
2
+ 3X – 12
Input the formula.
p
y
p
u
p
x
K
+
3 p x
, 12
Y=
X
2
+
3
X
-
12
0.
Store it in memory. C
X?
0.
Input a value for its variable. 7 =
58.
=
X?
7.
8 =
76.
•Formula memory is cleared whenever you start a new
calculation, change to another mode, or turn off power.
Base-n Calculations (fx-85W)
•In addition to decimal values, calculations can be per-
formed using binary, octal and hexadecimal values.
•You can specify the default number system to be ap-
plied to all input and displayed values, and the number
system for individual values you input.
•You cannot use scientific functions in binary, octal, deci-
mal, and hexadecimal calculations. You cannot input val-
ues that include decimal part and an exponent.
If you input a value that includes a decimal part, the unit
automatically cuts off the decimal part.
•Negative binary, octal, and hexadecimal values are pro-
duced by taking the two's complement.
25


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